// Copyright 2022 jeff.li. and/or its affiliates.
/*
 * Acknowledgement: The structure of functor::str is inspired by pythran.
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#pragma once

#include <sstream>
#include <string>

namespace tbir::runtime::builtins::functor {

    template<class T>
    inline std::string str(T const &t);

    inline std::string str(bool b);

    inline std::string str(int64_t value);

    inline std::string str(double l);

    template<class T>
    inline std::string str(T const &t) {
        std::ostringstream oss;
        oss << t;
        return oss.str();
    }

    inline std::string str(bool b) {
        static char const repr[2][6] = {"False", "True\0"};
        return repr[b];
    }

    inline std::string str(int64_t value) {
        return std::to_string(value);
    }

    inline std::string str(double l) {
        // when using %g, only 6 significant bits are used, so this should be
        // enough.
        // Use snprintf though
        char buffer[8 * (1 << sizeof(l))];
        snprintf(buffer, sizeof(buffer), "%g", l);
        return buffer;
    }

}  // namespace tbir::runtime::builtins::functor
